Search for dissertations about: "cft"

Showing result 1 - 5 of 31 swedish dissertations containing the word cft.

2. 1. An Exploration of Q-Systems : From Spin Chains to Low-Dimensional AdS/CFT

   Author : Simon Ekhammar; Dmytro Volin; Konstantin Zarembo; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum Spectral Curve; Integrability; AdS CFT; Physics and Astronomy specializing in Theoretical Physics; Fysik och astronomi med inriktning mot teoretisk fysik;

   Abstract : The discovery of integrability in the planar limit of the AdS5/CFT4 correspondence has led to impressive progress in the study of string theory and four-dimensional N=4 Super-Yang-Mills. In particular, with the formulation of the Quantum Spectral Curve (QSC) the spectral problem is now solved. READ MORE

4. 2. Strings, Branes and Non-trivial Space-times

   Author : Jonas Björnsson; Stephen Hwang; Ioannis Bakas; Karlstads universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; String theory; Membranes; BRST; p -branes; p -branes; Non-compact backgrounds; WZNW-model; No-ghost theorem; Unitarity; Hermitian symmetric spaces; CFT; Physics; Fysik; Physics; Fysik;

   Abstract : This thesis deals with different aspects of string and /p/-brane theories. One of the motivations for string theory is to unify the forces in nature and produce a quantum theory of gravity. /p/-branes and related objects arise in string theory and are related to a non-perturbative definition of the theory. READ MORE

5. 3. A CFT perspective on holographic correlators

   Author : Giulia Fardelli; Agnese Bissi; Paul Heslop; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Superconformal field theories; Analytic bootstrap; Correlation functions; Quantum gravity; Theoretical Physics; Teoretisk fysik;

   Abstract : Conformal symmetry is ubiquitous in physics. It emerges in a variety of situations from critical phenomena, through condensed matter systems and jets at the LHC to string theory. Conformal field theories (CFTs) describe the universal behavior underlying these very different setups. READ MORE

6. 4. Exact Results in Supersymmetric Field Theories : A dissertation on the defect and deformed

   Author : Erik Widen; Konstantin Zarembo; Nikolay Gromov; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; AdS CFT correspondence; integrability; localization; supersymmetric deformations; Quantum Spectral Curve; defect CFT; one-point functions; Theoretical Physics; Teoretisk fysik;

   Abstract : Quantum field theories (QFTs) are the most precise descriptions of the physical reality that humanity has found. Yet exact predictions are often missing as most computations are notoriously difficult to carry out. One generally resorts to perturbation theory which immediately limits the regime of validity. READ MORE

7. 5. A classifying algebra for CFT boundary conditions

   Author : Carl Stigner; Jürgen Fuchs; Alexei Semikhatov; Karlstads universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Boundary conditions; Conformal field theory; Factorization constraints; Modular tensor categories; TFT-construction; Mathematical physics; Matematisk fysik; Physics; Fysik;

   Abstract : Conformal field theories (CFT) constitute an interesting class of twodimensionalquantum field theories, with applications in string theoryas well as condensed matter physics. The symmetries of a CFT can beencoded in the mathematical structure of a conformal vertex algebra. READ MORE